# 首先创建列表，包括要打印的设计
# unprinted_designs = ['phone case', 'robot pendant', 'dodecahedron']
# completed_ideas = []
# 模拟打印的设计，直到没有打印未打印的设计为止
# 当打印每个设计后，都将其移动到列表
def print_models(unprinted_designs, completed_ideas):
    while unprinted_designs:
        current_design = unprinted_designs.pop()
        completed_ideas.append(current_design)
        print(f"Printing Model: {current_design}")
# 显示打印好的所有模型
def show_completed_ideas(completed_ideas):
    for completed_idea in completed_ideas:
        print(completed_idea)
unprinted_designs = ['phone case', 'robot pendant', 'dodecahedron']
completed_ideas = []
print_models(unprinted_designs[:], completed_ideas)
show_completed_ideas(completed_ideas)
print(unprinted_designs)